Universal telephone set



NV.5,1929. WGREEN EVAL l,734,r124

UNIVERSAL TELEPHONE SET Filed May 27. 1926 5 Sheets-Sheet l '\|IIllllllllu.

ATTORNEY .950% 59 1929 l. w. GREEN ET AL 973424 UNIVERSAL TELEPHONE SETFiled May 27%. 192e s sheets-sheetv 2' ZW'l/ee/M/Wlg By A l ATTORNEYNGV. 5, E929. W, GREEN ET AL 734924' UNIVERSAL TELEPHONE SET Filed May27. 192e s sheets-sheet a 47 u WML A 50 ,.1 v .ATTORNEX condensers andother units.

Patented Nov. 5, 1929 IRVING W. GREEN, OE ORANFOR AND ALFRED E. 1NGLIS,OF 'UPPER MONTCLAIR,

NEW JERSEY, ASBIGNORB TO AMERICAN TELEPHONE AND TELEGRAPH COMPANY,

` A CORPORATION Ol' NEW YORK UNIVERSAL TELEPHONE snr Application and mysa' This invention relates to telephone sta- .tion sets, and moreparticularly to housings for sets of this character which are adapted tobe used'with a combination of different units to form various telephoneset mountin s.

t has been customary Ain connection with telephone sets to use separatebell boxes which contain the usual ringer apparatus2 together withapparatus including induction coils, Furthermore, it has been customaryto employ various sets at the stations as may be desired, comprising,for instance, such forms as a semi-portable ty for mounting on the topof a desk or tab e a ermanent mountino secured to either the right orleft side o? a desk or table, and a set to be mounted on a wall. Thesemountings, of course, have to be equipped with either manual or machineswitching arrangements, depending upon which system is used in theterritory Where the apparatus is to be installed. Each type of thereviously mentioned niountings requires n make-up, andthe form used inone type cannot be used interchangeably with other types. This conditionmakes it necessary to carry all the ty es enumerated in stock and alsorequires tlih use of a separate' bell box with any of the typesinstalled.

Accordingly, it is im object of this invention to provide a unitarystrcturencomprising a universal mounting with which various t pes oftelephone station sets may be interc angeably attached. Another objlectconsists in Aproviding the unitary structure with ringer and otherAequipment now included in separate bell boxes. These and othei.obj|ectswill be ap arent from t lie following description, when considered ineonnectipn 4with the accompanyin drawings in .which one embodiment oftie invention is illustrated.

Referring to the drawin Figure 1 illustrates a to plan View oft ieinterio'i` of the improved evice; Fig. 2 is a perspective view of theexterior 4of such device'; Figs. 3 and 4 are details ofmachine-switchingapparatus which may be used with the improvedarrangement; Figs. 5 and 6 are perspective iiferent instrumentalities intheir ieee. semi no. 112,101.

views of casings' in which the machineswitching apparatus indicated inFi s. 3 and 4 ma be mounted; Fig.` 7 is a side e evatioii of a ookswitch and its spring contacts; Fig. 8 is atop lan view of a plate onwhich the hook switci may be mounted; Fi s. 9

and 10-are top plan views of blank patesA which may be attachedrespectively to o enings in the sloping side and top Walls o theimproved niountin Figs. 11, 12 and 13 are asingswhich may e attachedtothe mounting indicated in Fi 2 to support dial switching mechanism; is.- 14 and 15 are fragmentary .view s of t e cradle shown in perspectivein Fig. 16; Fig. 17 isan exploded view of an arm which may be attac iedto the mounting; Fig. 18 is a side elevation partly in section ofthe-mounting showing 1the cradle arran ement of-Fig. -16 positionedthereon, and igs. 19, 2O and 21 are perspective views showing theuniversal mountin havin a top desk set, a side desk set an .a wal set,res ectively, associated therewith.

In Fig. 1 o the drawings isl shown the interior of the imlproved unitarystructure, which includes t e equipment found in a bell box usuallymounted separately from the tele )lione set on a wall or othersupporting sur ace. The housing for this equipment in the presentinstance consists of a hase 5 With a cover (l hinged thereto to bepresently referred to. A polarized ringer 7 of any well known ty e ismounted in the approximate center of t e base and is provided with gongs8. The gongs are mounted in an inclined position on posts 9 which may beattached .to the yoke of the ringer in any suitable manner to providefor the desired inclination of the gongs. A condenserA 10 is mounted on-in the base to secure the terminal strip and condenser thereto. Aninduction coil 13 is secured to the base on the opposite side of the riner, for instance, by screws extending througg lugs 14 on the ends of theinduction coil and'engaging with threaded openings in the base.

The condenser 10,'strip 11 and coil 13 are provided with terminals towhich conductors are attached in practice, and the ringer 7 is likewiseconnected to conductors so that it.

will beactuated by current impressed on said conductors. `,Theseelectrical connections,

' .threaded and carry screws hinfged portion and the edge thereof, whenis` so seated on the base 5 that a tight closure` is provided, so thatdust is excluded from the interior. Raised portions 17 are provided onthe base to further effect this tight closure, and lugs 18 areassociated with the raised portions at one end of the base. These lugsare 19 with which slots provided in the' cover engage so that when the'screws are tightened they securely lock the cover to the base, as moreclearly indicated in Fig. 2. The sides of the cover extend .from theflange 16 in a sloping direction to the flat portion on the top of saidcover,

and the meeting points of the sides and top' are suitably rounded. i

The flat portion of the cover` 6 has an opening 20 of irregular form cutin its approxi mate center, and on one ofthe sloping sides of said covera second openingsuch as indicated by the numeral 21 is provided. OnV

the sloping side of the cover adjacent its and ldirectly over the gongs9 o the ringer, a double row of vent holesare shown in the presentinstance in the form of louvres 2.2. These serve to permit the gongs tobe heard more clearly when the ringer is i, operated.l

The unitary structure shownin Figs. 1 and 2 is adapted to be used as auniversal mounting for various types of telephone station sets and formanual or machine-switching service,

.-xfas will be pointed out below, andas indicated v propriate when inFigs. 19, 20 and 21.` While the face 5 of the housing has been referredto as a base, it will be evident that this term is more apthe device isused as in Fig. 19, and, in general, this outerwall 5 may be designatedas an outer plane-base of the housing or casing.

In the use of the approved device as atelephone set for manual serviceto be'positioned on the top of a desk or "table, a standard or pedestal23, such as shown in Figs. 14, 15, 16 and 19, is attached to the topflat surface of the cover.' This attachment may be made by screws,applied through the three holes 24 from the interior of the cover, whichregisterl with three threaded openings 24 on the bottom of the standard.The standard 23 may have an integral cradle member 25 formed on itsupper portion which extends outwardly on either side thereof. The cradle25 is. rog vided with four outwardly extending or aring guard arms 26,the extremities of which are preferably turned outwardly, as morelclearly shown in Figs. 16, 18 and 19. A T-shaped plunger comprising ahorizontal bar 27 and a spindle 28 is associated with the standard; Thebar is seated in a depressed portion of the cradle, is attached to thecenter'of sai bar, extends downwardly therefrom and is. adapted to movevertically within the tubular standard. A spiral spring 29 encircles thespindle and extends thereon from a plate to the enlarged head 30 of thespindle and controls the vertical movement thereof. When a hand set andthe s indle, which comprising a .receiver and transmitter, which has notbeen illustrated in the present instance for the sake of clearness, butwhich may be of any well known type, is placed on the T-shaped plunger,its weight causes the depression o the spring 29. The guard arms serveto keep the hand set positioned in the cradle. When the hand set isremoved from the cradle, the sprin 29 causes the elevation of thespindle whic provides for the electrical connection of the hand set in awell understood manner.

The lower end of the spindle 28 extends A.

a linger extending therefrom to which a bankv of sprin s 33 is affixed.The'extended end of the spindle` 28 opens-and closes contacts betweenthese springs upon the seating and removal of the hand set from thecradle.

The mounting of the standard 23 upon the top of the cover 6, as justdescribed, is employed when the convertible mounting is to be used for atop desk or table set and when manual service is' available. Under theseconditions, the opening A21, as indicated in Fig. 2 of the drawings,will have a blank plate 34 covering it. The blank plate 34, which isillustrated in Fig. 9 is a rectangular form and has a threaded stud ateach of its corners on its bottom surface. These studs, as indicated bythe reference character 35 register The studs extend through theapertures 35 and engage nuts 36 beneath the apertures and thus securethe plate 34 to-the'cover. The

plate 34 may be provided, if desired, with a card holder 36 aflixed inany suitable position inapertures 35 provided in the front sloping'12g-f surface of the cover 6 about the opening 21.

lined, and the plate 38 (Fig. 11

plate 38 'in the art and need o'n prising the dial an form indicated inFig. 19 is used. The standard 23 in this case is left in the ositionoutfis attached to the front sloping surface of the cover 6 in place ofthe plate 34. This plate has a stud 39 provided on each corner of itsbottom surface. The studs 39 are similar to the studs provided on theblank plate 34 and extend through the apertures 35 of the cover andengage nuts beneath said apertures. The has a com aratively lar reoIpening 40l in its center whic is rovxded febr t 1e purpose ofpermitting t e extension therethrou h o switching equipment of a dial.The 1al and its equi ment are well known il; a brief description to showtheir application to the resent invention. Fig. 3 shows the rear ace ofa dial, and its switching equipment 41 extends through opening 40 intothe interior of the vhousing rovided by the base 5 and its cover 6. Fort e pur ose of positioning the dial, it is first attac e to the plate38, indicated in Fig. 11', by means of screws extending through threeapertures 42 provided in the plate 38 'into threaded openings 43 in therear of the 3. When the unit comdial, as shown in Fi late 38 are securedto f each other, the late 1s attached to the cover Aas '6, as previouslyindicated. The bottom of the unlversal set is preferably provided withflt or the like when used as a top desk set to prevent scratching thesurface on which it is positioned.

.When it is desired to use the im roved arrangement as a mounting on thesi e of a desk or table for manual service it is fastened thereto byscrews extending through the base anden agingthe su porting wall. Theblank plate 4 shown in 1g. 10 1s applied over the aperture 20 on thefiat surface of the set. This plate is provided with a stud 45 affixedto each corner of its bottom surface, and may also have a card holder 36provided on its'center. The studs register with four lopenings 46, shownin Fig. 22 and extend therethrough to engage nuts pos1tioned beneath theopenings, and thus serve to attach the blank plate 44 to the top surfaceof the cover. In case the mountingl is to be positioned at the rightside of the desk or table, the flat surface will be turned toward theright with the aperture 21 appearing in the front. A plate 47 (Fig. 8)having a stud 48 on each corner of its bottom surface is placed overthis opening with the vstuds 48 registering in and extending through theopenings 351of the.cover 6, shown in Fig. 2 and nuts engage the extendedportions of the studs beneath the cover and secure the plate 47 thereto.The plate 47 has a slot 49 provided therein through which a hook switch50 extends. The hook switch 50 (Fig. 7) is journaled in a plate 51, andthis plate is secured by means of a bolted lug 52 to the un- .derface ofthe plate 47. A bank of contact yf springs 53 is secured to the ofbolts. These contact and closed by a cam 54- attached to the hook switch50,.so that when a hand set (not shown) is removed from the hook switch,contact is made between the springs in an obvious manner to close acircuit and the restoration of the hand set to the hook switch opens thespring contacts.

When it is desired to mount the set on the left side of a desk or table,the flat ortion of the cover faces toward the left, an the plate 47 isassociated with the front sloping side of the cover. In this instance,however, the plate will be reversed in its attachment to cover theopeningI 21.

The positionin of the set on the right and left side of the ta le ordesk, just referred to, with the blank plate 44 attached to its fiatsurface is employed only when manual service is necessary.

Where machine switching service is employed, the form shown in Fig. 2Owill be used. This figure shows the universal set applied to the leftside of the desk, but it may be equally well mounted on the opposite orright side of the desk as will be resently described. The hook switchattache to plate 47 will be used in this connection, as just described,for either the right or left side of the desk or table. Inmachine-switching service, however, the plate blank 44 will be removedfrom the fiat surface of the cover, and a plate 55 as more clearly shownin 17, will be substituted. The plate 55 is of the same shape as thelate 44 and has studs 56 similarly positioned) about the four corners ofits bottom surface. The plate 55 has an opening formed in its innersurface which extends upwardly into a tubular sleeve 57. A secondtubular sleeve 58 telesco es the sleeve 57, and may be attached theretoy screws or the like. The tubular openings previously referred to arerovided for the con( uctors extending from the interior of the casing toa dial on the end of the arm. The sleeve 58 has a socket 59 attachedthereto, and the other end of the socket registers with a casing 60,This casin and its' attached socket and sleeve are s own in perspectivein Fig. 6 in connected relation. The rear portion of a machine-switchingdial, such as is indicated in Fie. 3 is adapted to be inserted withinthe casingbO. The dial in thisv connection has a su stantiallycrescentshaped platef61 attached to its rear surface. The plate 61through it, and these openings register wit the openings 43 in the rearface of the dial when' the plate and dial are laced together, so thatscrews may be exten ed through the openings 62 into the openings 43 ofthe dial to secure these elements to ea'ch other. The plate 61 has lugs63 disposed about its surace. Each of theselugs is provided with purposeo housing the' has openings 62' extendin openings, and'fwhen the unitcomprising the plate 61'and the dial are positioned inthe casing 60,vthe openings in the lugs 63`register -with openings. 64 in the casing,so that screws passing through the registered'openings secure' thedial-to the casing. The machineswitching arrangement just described isequally well adapted to be used with a left side desk mounting or rightside desk mounting.; In the latter mounting the plate' 55 is simply'reversed 'from the position shown -in Fig. 2O and applied to themounting on the right side of the desk. The turning of the tubularsleevewith the dial is readily permitted in an obvious manner.

If it is desired to use the mounting shown in Fig, 2 for a set to beattached to a surface, such as a wall, the combination set forth inconnection with the left side desk or table stand mounting will be usedin case manual service is desired.

In the case of machine-switching service in connection with a wallmounting, the dial will be attached as shown in Fig. 21. The blank plate44 will be detached in this instance from the flat ortion of the cover,anda casing 65, such as 1s indicated in Figs. 5, 12 and 13 will besubstituted for the removed plate. The casing 65 is provided with a,platev 66, corres n ing in form to the plate 44 and with t ree inwardlyextending lugs having openings 67 therein. The openings 67 register withthe three openings 24 provided in the ilat portion of the cover 6, sothat screws inserted from' the interior of the said cover pass throughthe aligned openings 24 and 67 may engage ruts seated on the lugsl overthe latter openings to secure the ,elements together. The plate 66 has aring-like portion extending upwardly therefrom, the height of oneportion of said ring being greater than that of the other, as shown inFigs. 5, 12 and 13. The ring has openings 68 provided about its surface,as may be more clearly seen in Fig. 5. y These openings are adapted tocoincide with the openings provided on the lugs 63 of plate 61, (Fig. 4)s0 that when this plate is attached tothe rear portion of a dial, (Fig.3 the unit provided byl such attachment is aA apted to be seated in t ecasing 65, so that when screws are inserted throughI the alignedopenings 68 of said casing and the openings provided in the lugs63 ofcrescent-shaped plate 61, they will serve to securelymount the dial inthecasing 65.

From the above it will be obvious that by means of the present inventiona single unit` is provided, which consists of a casing' comprising thebase 5 and its cover 6 and the uipment commonly contained in a separatelbell or ringer box. v, This unit is adapted to be used with alvariety ofmountings. instance, Fig. 18 indicates a top desk set equipped for use'with manual service. To

' convert this -set so that it may be used with telephone ringer boxFor.

machine switching service, it is only necessary Asired'in connectionwith this mounting, the

plate -isremoved and a blank plate'substituted therefor.

If a rightdesk mounting is desired, the unitary casln is converted fromthe 'position shown in ig. 20, and the plate carrying the dial isapplied to the casing in its inverted position to ether with the llate'47 carrying the hook switch. If manual)service is desired inconnection with the right side desk mounting, the plate 55 is ren'lovedvand a blank plate such as is indicated in Fig. 10, is substitutedtherefor.

' In Fig. 21 the casing is equipped with a switch hook and a dial 69 formounting on a wall for use with machine switching service. If the casingis to be used for manual service, the plate 66 carryin the dial issimply removed and a blank ate 44 substituted t erefor.v The wall set 1sequally well adapted to be mounted, so that the switch hook ispositioned at the right of the casin and the dial or blank plate may beattache to the casing at this time. All that is necessary toaccomplishthis is that the casing be turned so that the side nowappearing on the left be reversedto the right.

A universal casing is thus provided by this invention which is adaptedto have a number of interchangeable attachments which may beinterchangeably mounted on the casing 1n a number of diierent ways.

. What is claimed is:

1. In a telephone set, acasing, a bell, condenser and induction coiltherein, said casing having an extended outer plane face on one side,means to fasten a pedestal on one face of the casing to sup ort a handset when the casing is mounted with said plane face horizontal andforming the under side-of the casing, and means to fasten supportinmeans to hang the hand set on another face o? the casing when i ismounted with said face vertical.l

2. In a telephone set, a casing, instrumentalities including all theelements of a desk mounted therein, said casing having an extended outerplane face on one side, means 'to fasten a pedestal on one face of thecasing to support a hand set'when the said plane face is'-horizontal andis the under s ide of the casing, and means to fasten supporting meansto hang the hand set on another face of 'the casing when-said face-isthe casing is'. applied thereto as lll vertical, and switches associatedwith the -means to fasten the pedestal' and the means to fasten thesupporting means.

3. In a telephone system comprising a casing, ringer apparatus,induction coil and condenser witliin said casin means to fasten apedestal on one face of t e casing when it is mounted in one positionand means to mount a hook switch on another face of said casino` whenthe casin is in another position, said pedestal and said hook switchbeing adapted -to support a hand set,` and means to fasten a dialingswitch 'on said casing in either 1nstance, the dialing switch bein rmounted on the location of the pedestal w ien the hook switch is used,and being mounted on the locationi of the hook switch when the pedestalis use 4. In a telephone set comprising a casin f having one mounting tosup Jort a pcdesta and another mounting for a look switch to sup ort ahand set, a dialing switch provided with) means whereby it may bepositioned 1nterchangeably on said easin f in the position of either thepedestal or hoo switch depending on whether one or the other is uset,and ringer apparatus, induction coil and condenser contains within saidcasing.

5. In a telephone set comprising a casing having openings in two of itssides, a pedestal adapted to be attached to said casing over one of itso enings, a hook switch adapted to be attache to said casing over anotier of its said openings, said pedestal and said hook switch being eachada ted to support a hand set, a dialing switch a apted to be attachedto said casing over either of said openings and used interchangeably incombination with the pedestal and with the hook switch, and apparatuslincluding a ringer, induction lcoil and condenser contained within saidcasing.

6. In a telephone set comprising a casing ada ted to be mounted in ahorizontal or v ertical) position, said casing having a plurality ofmounting faces, a pe estal adapted to be mounted on one face of thecasing in its horizontal position, a hook switch adapted to be mountedon another faceof said casing in its vertical position, said pedestaland said hook in combination with the switch being adapted to support ahand set and apparatus including a ringer, induction coil and condensercontained within said casing.

7. In a telephone set comprising a casing adapted to be mounted in aplurality of positions, said casing having a plurality of mountingfaces, a pedestal adapted to be mounted on one falce of the casing inone of its positions, a hook switch adapted to be mounted on a secondface of said casing in another of its positions, a dialing switchadapted to be attached to the casing and alternately used pedestal whenthat is mounted on the'casing and with the hook switch when that ismounted on `the casing,

hand set,

.and instiumentalities including all the essentials of a desk telephoneringer box mounted in the casin 8. In a telepone set comprising a casingadapted to be mounted in a p urality of positions including a top deskmounting, a right side desk mounting, a left side desk mounting and awall mounting, a pedestal ada ted to be used with the casing for the topdesk mounting, a hook switch adapted to be used interchangeably for theright side desk mounting, left side desk mounting andy wall mounting,said pedestal and hook switch each being adapted to support a hand set,a dialing switci adapted to be fastened to said casing in place of saidpedestal or said Y which is used2 and apparatus yincluding av ringer,induction coil and condenser contained within said casing. 9. In atelephone set com adapted to be mounted in a p urality of positions,said casing having a plurality of mounting faces, said positionsincluding a top desk mounting, a right side desk mounting, a left sidedesk mounting and a wall mounting, a pedestal adapted to be attached toone face of the casing when mountedi on the top of a desk, a hook switchattached to another face of the casing and adapted to be usedinterchangeably when the casin is mounted on the right side of a desk,left side of desk and on a wall, said pedestal and hook switch beingeach adapted to supporta hand set, and apparatus including a ringerinduction coil and condenser contained within said casing. 10. In atelephone set, a casing, said casing havin a plurality of mountingfaces, a ringer, in uction coil and condenser within said casing, saidcasing being adapted in one osition to rest on a table and serve as abase ior a stand mounted on one face to support a hand set, and inanother position to be fastened to a vertical wall and to be rovidedwith a hook switch mounted on anot er switch for a hand set, blankplates adapted to be fastened to said casing in place of said stand andsaid rising a casing eis hook switch when one or the other is not iused, and dialing apparatus adapted to be fastened to said casing foruse in combination with the stand and with the hook switch.

11. In a telephone set, a casing, said casing having two mounting faces,a ringer, induction 'coil and condenser within said casing, said casingbeing adapted in one osition to rest on a table and serve as a base or astand fastened on one mounting face to su port a and in another positionto e fastened to a vertical wall and to be provided with a hook switchfastened on another mounting face for su portin the hand set, said standand said hoo z switcgbeing ada ted for usein manual telephone service,and ialmounting face of said casing in combination with the stand andWiththe hook `switch fastened to theother mounting face of the casingfor use in machine switching telephone SelVlCe.

12; The combination of a universal casing with a number ofinterchangeable telephone units which may be applied thereto for a topdesk mountin a right side desk mounting,

a left side des mounting and a wall mounting, and means whereby saidunits may be interchangeably fastened t`o the casing in a number ofdiierent desired mounting combinations, said units including a switchhook 15 to support a handset foreach mounting for manual telephoneservice, and a dial adapted to be attached to said casing and used incombination Vwith said hook switch for ma- Vchine switching telephoneservice.

In testimony whereof2 we have signed our names to this specificationthis 26th day of `1smy,1926.

.y l, IRVING W. GREEN.

. ALFRED H. INGLIS.

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